1 /* 2 * Copyright (C) 2016 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 15 package com.google.common.base; 16 17 import com.google.common.annotations.GwtCompatible; 18 19 /** 20 * The subset of the {@link java.util.regex.Pattern} API which is used by this package, and also 21 * shared with the {@code re2j} library. For internal use only. Please refer to the {@code Pattern} 22 * javadoc for details. 23 */ 24 @GwtCompatible 25 @ElementTypesAreNonnullByDefault 26 abstract class CommonPattern { matcher(CharSequence t)27 public abstract CommonMatcher matcher(CharSequence t); 28 pattern()29 public abstract String pattern(); 30 flags()31 public abstract int flags(); 32 33 // Re-declare this as abstract to force subclasses to override. 34 @Override toString()35 public abstract String toString(); 36 compile(String pattern)37 public static CommonPattern compile(String pattern) { 38 return Platform.compilePattern(pattern); 39 } 40 isPcreLike()41 public static boolean isPcreLike() { 42 return Platform.patternCompilerIsPcreLike(); 43 } 44 } 45